Home / 89,860.40-124,007.16-49,576.70

Finding the Fourth Proportional to 89,860.40, 124,007.16 and 49,576.70

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Solution

The fourth proportional to 89,860.40, 124,007.16 and 49,576.70 is: 68,415.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,860.40 : 124,007.16 = 49,576.70 : x
  2. Step 2: Convert to fraction form
    89,860.40/124,007.16 = 49,576.70/x
  3. Step 3: Cross multiply
    89,860.40x = 124,007.16 × 49,576.70
  4. Step 4: Simplify right side
    89,860.40x = 6,147,865,769.17
  5. Step 5: Solve for x
    x = 6,147,865,769.17/89,860.40
  6. Step 6: Final answer
    x = 68,415.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.